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CVE-2015-8540

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Date: April 14, 2016

Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1.2.56, 1.3.x and 1.4.x before 1.4.19, and 1.5.x before 1.5.26 allows remote attackers to have unspecified impact via a space character as a keyword in a PNG image, which triggers an out-of-bounds read.

Language: C

Severity Score

Related Resources (22)

https://access.redhat.com/errata/RHSA-2016:1430
http://sourceforge.net/projects/libpng/files/libpng12/1.2.56/
http://sourceforge.net/projects/libpng/files/libpng10/1.0.66/
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174435.html
https://access.redhat.com/security/cve/CVE-2015-8540
http://www.debian.org/security/2016/dsa-3443
http://www.openwall.com/lists/oss-security/2015/12/10/7
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
http://www.openwall.com/lists/oss-security/2015/12/11/1
https://security.gentoo.org/glsa/201611-08
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://sourceforge.net/projects/libpng/files/libpng15/1.5.26/
http://www.openwall.com/lists/oss-security/2015/12/10/6
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
http://sourceforge.net/p/libpng/code/ci/d9006f683c641793252d92254a75ae9b815b42ed/
http://www.openwall.com/lists/oss-security/2015/12/11/2
http://sourceforge.net/p/libpng/bugs/244/
http://www.openwall.com/lists/oss-security/2015/12/17/10
https://nvd.nist.gov/vuln/detail/CVE-2015-8540
http://sourceforge.net/projects/libpng/files/libpng14/1.4.19/
http://www.securityfocus.com/bid/80592
https://www.mend.io/vulnerability-database/CVE-2015-8540

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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